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TXW828

The TXW828 is a low-power, high-performance, highly integrated wireless audio/video SOC. It integrates 2.4GHz Wi-Fi, BLE, and SLE, high-performance ISP image processing, and H.264/MJPEG encoding, offering excellent RF performance, superior image processing capabilities, high-quality encoding, and lower bitrates. At the same time, it integrates a security algorithm acceleration engine and has a complete set of peripheral interfaces, including audio ADC/DAC, MIPI CSI-2, MIPI-DSI, DVP, LCD, RMII MAC, USB 2.0 High-Speed Host/Device, SDMMC Host, IIS, PDM, and other peripherals.

Features​

Wi-Fi MAC & PHY​

  • Supports IEEE 802.11 b/g/n standards
  • Supports 1T1R mode with data rates up to 150Mbps
  • Built-in PA, LNA, and RF switch
  • Supports STA, AP, AP+STA (relay), STA+STA functions
  • Supports RX STBC (Space Time Block Coding)
  • Supports WPA/WPA2/WPA3

BLE​

  • Supports Bluetooth network configuration
  • Supports Wi-Fi/BLE PTA coexistence

Video Codec​

  • H.264 encoding, supporting a maximum resolution of 19201080 @ 30fps + 640360 @ 30fps + 320*180 @ 30fps(2 channels)
  • H.264 decoding (maximum resolution of 1920*1080 @ 30fps)
  • MJPEG codec, supporting a maximum resolution of 1920*1080 @ 30fps
  • Supports time watermark, colorful photo frame, motion detection, and optical flow algorithm hardware acceleration

Video Input​

  • Supports video data sources via DVP, UVC, SPI camera input
  • SUpport 1 lane or 2 lane MIPI-CSI camera
  • Supports H.264/MJPEG decoding, scaling input
  • BT656/1120/601 input

Audio​

  • Supports single-ended and differential input high-performance analog microphones with built-in PGA.
  • 1 delta-sigma audio ADC.
  • 1 delta-sigma audio DAC.
  • Supports sampling rates of 8/11.025/12/16/22.05/24/32/44.1/48/96 kHz.
  • Analog MIC with differential input option, built-in PGA

Graphic​

  • Graphic 2D DMA

ISP​

  • Maximum resolution of 1920*1080 @ 30fps
  • Supports dual-channel time-division multiplexing
  • Supports 3A (AWB, AE, AF) and adaptive 2D/3D noise reduction
  • Pixel defect correction and lens shading correction
  • Image enhancements(brightness, sharpness, contrast, tone, and saturation adjustment)
  • Motion detection
  • Supports infrared coloring

Display​

  • Support MIP-DSI(1280*720 @60fps)
  • Supports RGB interface, MCU8080 interface, and MCU6800 interface for LCD screen display.
  • Suppoers SPI/QSPI LCD
  • Supports image scaling, 90/180/270-degree rotation, and horizontal and vertical mirroring.
  • Supports image OSD (On-Screen Display) and alpha blending.
  • Supports CCM (Color Correction Matrix), gamma correction, saturation, and contrast adjustment.

Core​

  • CPU0 with DSP instructions and hardware floating-point Xuantie E804FD, maximum clock speed 240MHz
  • 32KB I-cache 、32KB D-cache
  • 272KB SRAM(Max 560KB)
  • Supports various external frequency crystal oscillators(24-50MHz) and shared crystal oscillator input with the system main control chip
  • Supports RTC
  • Supports 32KHz crystal oscillator
  • 19 timers
  • Supports ULP and LP low power modes with ULP mode current < 10uA @25°C, and multiple IO wake-up support
  • Built-in temperature sensor
  • Built-in LVD detection
  • Built-in watchdog
  • 48-bit unique chip ID (UID)
  • Built-in multi-channel LDO output, output voltage range 1~3.3V

Peripherals​

  • 28 programmable GPIOs, support edge or level triggered interrupts
  • 1 10-bit ADC
  • 2 analog comparator
  • 1 QSPI, support external 1.8/3.3V SPI FLASH(Max 256MB)
  • 1 OSPI, support built-in PSRAM
  • 2 I2S/PCM
  • 1 PDM
  • 2 SDIO2.0 Host Controller
  • 1 USB1.1 Full Speed Device/Host
  • 1 USB2.0 Full Speed Device/Host
  • 3 SPI interfaces Master/Slave (2 configurable as IIC Master/Slave)
  • 5 UART interfaces (1 supports flow control and RS485)
  • 2 infrared transmitters (1 supports IrDA) and multiple receivers
  • 14 PWM outputs (multiplexed with timer), including 4 independent 16-bit PWM, support low power mode PWM

Boot Interfaces​

  • USB2.0 Device, UART
  • SPI FLASH, SPI NAND FLASH\SD NAND、SD/MMC/eMMC

Security​

  • Support for AES 128/192/256 ECB/CBC/CTR encryption and decryption
  • Support for SHA256
  • Support for 5/7/8/16/32-bit CRC checking
  • Support for SPI Flash firmware encryption protection
  • TRNG (True Random Number Generator)

Temperature Range​

  • -40°C to 85°C

Package Options​

ModelPackageSRAMPSRAMUSB2.0MIPI CSI-2MIPI-DSIH.264DVPMJPEG CodecSDIOLCDFEMLow Power
TXW828-C08FLQFN68368KB8MB✔️✔️✔️✔️✔️✔️✔️✔️✔️
TXW828-E08FLQFN80368KB8MB✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️
TXW828-E016FLQFN80368KB16MB✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️
TXW828-J016FLQFN96368KB16MB✔️✔️✔️✔️✔️✔️✔️✔️✔️✔️